Answer:
The number b is bigger than the number a by
of a.
Step-by-step explanation:
1. If the number a is smaller than the number b by 1/5 of b, then

Thus,

2. Consider the expression 

This gives you that the number b is bigger than the number a by
of a.
The answer is X=5 and Y =-2
View the picture to see step by step solution
Answer: 1/20 (fraction) or 0.05 (decimal)
Step-by-step explanation:
first i like to make them a decimal so its easier.
1/4 = 0.25
1/5 = 0.2
multiply 0.25 and 0.2 = 0.05
make 0.05 a fraction
1/20
simplify. (it's already in its simplest form)
the answer is 1/20 as a fraction or 0.05 as a decimal.
(i dont know which one ur teacher wants u to do fraction or decimal?)
The answer would be 5.25 CDs. This is right because 420/80 is 5.25.
Hope this helps!